One World Trade Center dominates the New York skyline once again — but it's only the tallest building with a caveat.

On Monday, the still-in-progress building will reach just over 1,250 feet, which makes the new World Trade Center taller than the iconic Empire State Building. Well, kind of. See, that only works if you don't count the antenna on top of the Empire State Building, which surpasses One World Trade Center. Luckily for architecture size queens, antennae are usually disregarded when it comes to measuring building heights.

But wait — when it's finished, One World Trade Center will be the country's tallest building at a patriotic 1,776 feet. Except that includes the antenna spire, the same extra bit we disregarded when measuring the Empire State Building. Without the antenna, the new World Trade Center will be number two to Chicago's Willis Tower.